AS396501 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet

CIRA-5 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet · registered in Canada

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Canada#1,239largest network in CA by IPv4 space, of 1,575 · <0.01% of CA

Rank worldwide#62,716of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryCanada1,622 ASNs registered there

Open AS396501 in ASN lookup Look up an IP in this network (185.159.199.1) All networks in Canada

IPv4 prefixes

All 1 prefix, in address order.

185.159.199.0/24

IPv6 prefixes

All 1 prefix.

2620:10a:80ac::/48

Other ASNs named CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet

4 other networks use the same organisation name; together with AS396501 they announce 8,192 IPv4 addresses.

ASNNameIPv4 addresses

AS27299CIRA-REGISTRY - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet CA2,816

AS55195CIRA-CLOUD1 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet CA2,560

AS394354CIRA-CLOUD2 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet CA2,048

AS40568CIRADNS3 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet CA512

Similar-sized networks in Canada

ASNNameIPv4 addresses

AS393818#1236 TUCOWS-TRS-DNS1 - Tucows.com Co.256

AS396031#1237 ATLANTA-CS-1 - 1923327 ONTARIO INC256

AS396142#1238 ALKERON - Alkeron Inc.256

AS397264#1240 CITY-OF-LONDON-ON-CA - City of London256

AS397727#1241 HFXIX-TR - Atlantic IXPs Inc.256

AS398713#1242 METREX-SYS-NET-01 - Metrex Systems Consulting Inc.256

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources